五年级计算题天天练
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人教版数学五年级上册数学计算天天练100题题目一:加法计算1. 将下列数相加:a) 36 + 24 =b) 82 + 17 =c) 51 + 69 =d) 48 + 53 + 9 =2. 根据题意,填入适当的数:a) 62 + _____ = 99b) 87 + _____ = 121c) _____ + 56 = 99d) _____ + 28 = 753. 如果a = 28,b = 53,c = 72,d = 84,请计算:a) a + b = _____b) c - a = _____c) d + b - c = _____题目二:减法计算1. 用适当的数字填空:a) _____ - 46 = 23b) 57 - _____ = 34c) _____ - 19 = 40d) 91 - _____ = 692. 计算下列问题:a) 78 - 43 = _____b) 92 - 29 = _____c) 57 - 24 - 12 = _____d) 148 - 53 - 32 = _____3. 根据以下算式,计算空缺的数字:a) 97 - _____ = 42b) _____ - 25 = 78c) 93 - _____ = 19d) _____ - 12 - 8 = 49题目三:乘法计算1. 计算乘积:a) 8 x 5 = _____b) 7 x 9 = _____d) 6 x 9 x 2 = _____2. 根据已知条件,填入适当的数字:a) 6 x _____ = 54b) 8 x _____ = 64c) _____ x 7 = 63d) _____ x 2 = 483. 如果a = 12,b = 5,c = 8,请计算:a) a x b = _____b) c x a = _____c) b x c - a = _____题目四:除法计算1. 用适当的数字填空:a) 63 ÷ _____ = 9b) _____ ÷ 5 = 8c) 60 ÷ _____ = 10d) _____ ÷ 3 = 72. 计算下列问题:a) 32 ÷ 4 = _____c) 84 ÷ 6 ÷ 2 = _____d) 96 ÷ 8 ÷ 3 = _____3. 根据以下算式,计算空缺的数字:a) 48 ÷ _____ = 6b) _____ ÷ 7 = 9c) 63 ÷ _____ = 3d) _____ ÷ 6 ÷ 2 = 9题目五:多步计算1. 请先计算括号内的乘法,再进行加法和减法运算:a) 4 x 7 + 12 - 5 = _____b) 6 + 3 x 8 - 4 = _____c) 15 - 6 + 4 x 3 = _____d) 20 + 4 x 2 - 6 = _____2. 用适当的数字填空:a) 35 + 15 ÷ _____ = 40b) 72 - 9 x _____ = 15c) _____ + 6 x 9 - 5 = 54d) 48 - 8 x _____ + 20 = 203. 请根据题意计算:a) 32 - 18 + 7 - 5 + 14 = _____b) 78 ÷ 6 + 15 - 5 x 2 = _____c) 45 + 6 x 8 - 12 ÷ 4 = _____d) 96 ÷ 12 - 2 x 4 + 10 = _____。
2.1×2= 8×0.125= 0.54÷0.6= 4.5-0.05= 4.7+2.3==201-101=+212 =92-97 =+10152 =+2121二、脱式计算,能简便运算的要简便运算:7.85+2.34-0.85+4.66 7.14-0.53-2.47 =++312151 =-+413121三、列式计算:,得多少?的差里减去与、从853112131,这个数是多少?倍之和是倍与这个数的、一个数的2353.2142四、解方程:7631=+X41127=-X五、应用题:1.、12颗糖,平均分给3个人,每人分得几颗?每人分得这些糖的几分之几?2、 5个苹果平均分给8个人,每人分得几个?每人分得这些苹果的几分之几?4.5×2= 6.9-2.5= 7.2×0.8= 0.3÷0.6= 7.3+0.27==+3231 =65-1 =65-65 =+5151 =51-54二、脱式计算,能简便运算的要简便运算:3 - 14 - 13 - 34 7.8×1.17-7.8×0.17 10- 712 - 512 58 + 45 - 38 + 15三、列式计算:多多少?的比、6551321是多少?的的、544182四、解方程: χ + 34 = 11121316 - χ= 38五、应用题:1、小明的爸爸用玻璃做了一个棱长是6dm 正方体鱼缸。
制作这个鱼缸时,至少需要玻璃多少平方米?小明在鱼缸里注入144L 的水,水面高度是多少分米?2、机床厂去年四个季度分别完成全年任务的1/6 、1/5 、4/15 、7/10 ,去年超额完成全年计划的几分之几?7.2+12.8= 46.7-3.8= 4.5×0.02= 8+7.2= 3.2÷0.04==+8383 =21-1 =+2192 =32-76 =+41103二、脱式计算,能简便运算的要简便运算: 51-4341+ )(1011751713+- 74-73-2 51211--三、列式计算:是多少?的千克的、4353921,乙数是多少?,乙数是甲数的、甲数是85722四、解方程: χ- 35 = 710237 +χ+425 =12五、应用题:1、工地运来一批钢材,其中圆形钢材2吨,方形钢材 2/5 吨,其它钢材 1/7 吨,这批钢材共有多少吨?2、 找一找:一个两位数,交换十位与个位上的数,所得的两位数仍是质数,写出两个这样的两位数。
人教版五年级数学口算天天练一、整数加减法1. 25+36=61-解析:个位上5+6=11,向十位进1,十位上2+3+1=6,所以结果是61。
2. 78-45=33-解析:个位上8-5=3,十位上7-4=3,所以结果是33。
二、整数乘法3.12×5=60-解析:12×5,先算2×5=10,个位写0 向十位进1,再算10×5=50,加上进位的1 得51,所以结果是60。
4.36×4=144-解析:先算6×4=24,个位写4 向十位进2,再算30×4=120,加上进位的2 得122,十位上是2,百位上是1,所以结果是144。
三、整数除法5. 72÷8=9-解析:根据乘法口诀八九七十二,所以72÷8=9。
6. 96÷12=8-解析:96 里面有8 个12,所以96÷12=8。
四、小数加减法7. 3.5+2.8=6.3-解析:小数点对齐,先算0.5+0.8=1.3,个位上3+2=5,所以结果是6.3。
8. 5.6-3.2=2.4-解析:小数点对齐,先算0.6-0.2=0.4,个位上5-3=2,所以结果是2.4。
五、小数乘法9. 2.5×4=10-解析:25×4=100,因数中有一位小数,从积的右边起数出一位点上小数点,所以结果是10。
10. 1.25×8=10-解析:125×8=1000,因数中有两位小数,从积的右边起数出两位点上小数点,所以结果是10。
六、小数除法11. 12.5÷5=2.5-解析:125÷5=25,被除数和除数同时扩大10 倍变成125÷50,商不变,所以结果是2.5。
12. 15.6÷3=5.2-解析:156÷3=52,被除数和除数同时扩大10 倍变成156÷30,商不变,所以结果是5.2。
人教版数学五年级上册数学计算天天练100题及答案一、一百以内的数加减法1. 计算:48 + 29 = ? _______2. 计算:75 - 32 = ? _______3. 38 + 14 = ? _______4. 67 - 19 = ? _______5. 填入适当的数字使等式成立:35 + 25 = _______二、两位数乘一位数6. 计算:26 × 3 = ? _______7. 计算:58 × 2 = ? _______8. 计算:43 × 4 = ? _______9. 计算:76 × 5 = ? _______10. 填入适当的数字使等式成立:58 × 1 = _______三、两位数除一位数11. 计算:42 ÷ 3 = ? _______12. 计算:96 ÷ 4 = ? _______13. 计算:58 ÷ 2 = ? _______14. 计算:75 ÷ 5 = ? _______15. 填入适当的数字使等式成立:36 ÷ 1 = _______四、空闲时间的数学练习16. 请将下列数按从小到大的顺序排列:73、15、42、98、2717. 请将下列数按从大到小的顺序排列:59、32、84、17、6518. 请将下面的数按从小到大的顺序排列,并用逗号隔开:67、23、89、45、1219. 请将下面的数按从大到小的顺序排列,并用逗号隔开:56、21、98、34、7720. 请写出比下面的数大10的两个数:25、43、67、91、15五、解决问题21. 书架上有65本书,其中有15本是故事书,其他都是百科全书。
请问百科全书有几本?22. 一包饼干有48个,小明吃了26个,请问还剩下几个饼干?23. 三角形的一个角是50°,另外两个角是相等的,请问这个三角形的两个相等的角各是多少度?24. 有一条绳子长85厘米,小明要把它剪成两段,一段是32厘米,另一段是多少厘米?25. 一辆公交车上有48个座位,已经有37个人坐下了,还有几个座位是空的?六、填空题26. 140 ÷ 2 = _______27. 57 + 23 = _______28. 46 - 18 = _______29. 39 × 4 = _______30. 78 ÷ 6 = _______。
五年级上册计算天天练100题及答案【小学五年级数学练习题:计算天天练100题】一、填空题(每题1分,共10分)1. 154 ÷ 22 = ______2. 267 + ______ = 3693. 48 × 5 = ______4. 925 - ______ = 4385. 76 × ______ = 3046. 205 ÷ ______ = 417. 520 - 139 = ______8. 99 × ______ = 8919. 624 ÷ ______ = 5210. 185 + 216 = ______二、选择题(每题2分,共20分)1. 若7 × 9 = 63,那么 9 × 7 =A. 49B. 56C. 63D. 702. 789 ÷ 3 =A. 273B. 263C. 264D. 2623. 若65 + 76 = 141,那么 141 - 76 =A. 65B. 55C. 59D. 664. 642 ÷ 4 =A. 160B. 160.5C. 165D. 1705. 若87 - 52 = 35,那么 87 - 35 =A. 42B. 47C. 52D. 726. 652 ÷ 2 =A. 326B. 328C. 338D. 3427. 若6 × 7 = 42,那么 7 × 6 =A. 42B. 35C. 49D. 568. 508 ÷ 7 =A. 70B. 71C. 72D. 739. 若294 - 187 = 107,那么 107 + 187 =A. 394B. 384C. 284D. 31410. 219 × 4 =A. 876B. 849C. 803D. 796三、解答题(每题5分,共15分)1. 某公司每天生产286个产品,连续生产了3天,共生产了多少个产品?2. 一个教室里有36个学生,每个学生有5只指头,共有多少个指头?3. 一家书店购进了240本书,每本书卖出了15元,共收入多少钱?四、应用题(10分)1. 某车间的质检员一天检查100个产品,如果连续工作7天,质检员一共检查了多少个产品?2. 小明每天背诵20个单词,连续背诵了5天,他一共背诵了多少个单词?【答案】一、填空题1. 72. 1023. 2404. 4875. 46. 57. 3818. 99. 1210. 401二、选择题1. A2. C3. A4. C5. D6. A7. D8. B9. C10. A三、解答题1. 286 × 3 = 858(个产品)2. 36 × 5 = 180(个指头)3. 240 × 15 = 3600 元四、应用题1. 100 × 7 = 700(个产品)2. 20 × 5 = 100(个单词)。
五年级上册计算天天练100题及答案一、填空题(每题2分,共20分)1. 345 + 186 = _______2. 537 - 248 = _______3. 879 × 5 = _______4. 648 ÷ 8 = _______5. 123 × 9 = _______6. 785 ÷ 5 = _______7. 124 + 567 - 289 = _______8. 729 ÷ 9 + 146 = _______9. 354 × 7 - 158 = _______10. 871 ÷ 7 + 235 = _______二、选择题(每题2分,共20分)1. 下列数字中,最接近2,100的是:A. 2,108B. 2,013C. 1,987D. 2,1562. 18 ×(24 + 13)= _______A. 774B. 882C. 936D. 1,0323. 498 ÷ 18 = _______A. 27B. 28C. 29D. 304. 32 × 45 - 18 × 45 = _______A. 1,170B. 1,350C. 1,530D. 1,6205. 1,241 + 692 = _______A. 1,933B. 2,124C. 1,913D. 2,0146. (472 + 148) ÷ 4 = _______A. 160B. 150C. 142D. 1327. 如果一包饼干有16片,6包饼干共有多少片?A. 80B. 86C. 92D. 968. 3,468 - 2,139 = _______A. 1,137B. 1,229C. 1,329D. 1,3299. 876 × 17 = _______A. 14,892B. 14,212C. 14,107D. 14,37610. 975 ÷ 15 = _______A. 58B. 60C. 62D. 64三、计算题(每题5分,共25分)1. 一桶装有3升的牛奶,小明喝了两杯,每杯喝了250毫升,他还可以喝多少毫升的奶?2. 若甲乙两数相差为37,且甲数的1/6是乙数的1/2,那么甲、乙分别是多少?3. 有一个长方形围墙,长12米,宽6米,现在要在围墙上围上一圈网,每段网需要3米,请问需要多少米的网?4. 在一串石头上,三分之一是小石头,三分之一是大石头,其余的是中等大小的石头。
人教版数学五年级上册口算天天练100题及答案口算天天练100题(五年级上册)题目一:整数的加法1. 23 + 56 =2. 75 + 34 =3. 98 + 17 =4. 42 + 59 =5. 65 + 83 =题目二:整数的减法1. 78 - 35 =2. 45 - 29 =3. 63 - 48 =4. 56 - 37 =5. 92 - 64 =题目三:两位数的乘法1. 32 × 4 =2. 76 × 5 =3. 23 × 7 =4. 98 × 6 =5. 45 × 2 =题目四:两位数的除法1. 72 ÷ 6 =2. 84 ÷ 7 =3. 96 ÷ 8 =4. 56 ÷ 4 =5. 48 ÷ 3 =题目五:面积计算1. 一个长方形的长为12米,宽为5米,它的面积是多少平方米?2. 一个正方形的边长为8厘米,它的面积是多少平方厘米?3. 一个长方形的长为15厘米,宽为7厘米,它的面积是多少平方厘米?4. 一个正方形的边长为10米,它的面积是多少平方米?5. 一个长方形的长为18米,宽为4米,它的面积是多少平方米?题目六:容量换算1. 12升 = _______ 分升(答案:120分升)2. 240毫升 = _______ 升(答案:0.24升)3. 5升 = _______ 毫升(答案:5000毫升)4. 3升 = _______ 分升(答案:30分升)5. 480分升 = _______ 升(答案:48升)题目七:时间换算1. 5分钟 = _______ 秒(答案:300秒)2. 2小时 = _______ 秒(答案:7200秒)3. 120秒 = _______ 分钟(答案:2分钟)4. 3小时 = _______ 分钟(答案:180分钟)5. 3600秒 = _______ 小时(答案:1小时)答案:题目一:1. 23 + 56 = 792. 75 + 34 = 1093. 98 + 17 = 1154. 42 + 59 = 1015. 65 + 83 = 148题目二:1. 78 - 35 = 432. 45 - 29 = 163. 63 - 48 = 154. 56 - 37 = 195. 92 - 64 = 28题目三:1. 32 × 4 = 1282. 76 × 5 = 3803. 23 × 7 = 1614. 98 × 6 = 5885. 45 × 2 = 90题目四:1. 72 ÷ 6 = 122. 84 ÷ 7 = 123. 96 ÷ 8 = 124. 56 ÷ 4 = 145. 48 ÷ 3 = 16题目五:1. 一个长方形的长为12米,宽为5米,它的面积是60平方米。
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数学五年级上册计算天天练五年级上册数学计算天天练小节一:整数的加减法1. 求下列各题的和或差,并用适当的符号填空。
(1) -5 + 7 = _____(2) 10 - 3 = _____(3) -8 + (-4) = _____(4) 15 - (-6) = _____2. 完成下列各题,并计算结果。
(1) 12 + (-8) - 5 = _____(2) 8 - 3 + (-6) = _____(3) 5 + 7 - (-9) = _____3. 小明的妈妈帮他存了300元零花钱,小明花了75元,剩余多少钱?4. 小华的铅笔盒里有8枝铅笔,他借给小明4枝,还剩几枝铅笔?小节二:小数的加减法1. 求下列各题的和或差,并精确到小数点后两位。
(1) 2.55 + 3.7 = _____(2) 5.8 - 1.26 = _____(3) 9.12 + 0.3 = _____(4) 4.7 - 2.144 = _____2. 完成下列各题,并计算结果。
(1) 5.6 + 2.36 - 1.75 = _____(2) 10.3 - 4.8 + 1.25 = _____(3) 3.7 + 0.8 - 2.6 = _____3. 小明的爸爸买了一箱苹果,共有25.6公斤,他把其中的12.35公斤分给了邻居,请问还剩多少公斤苹果?4. 小华的零花钱有15元,他买了一个2.5元的冰淇淋和一个4.8元的玩具,请问他还剩多少钱?小节三:分数的加减法1. 求下列各题的和或差,并化简为最简分数。
(1) 3/5 + 2/5 = _____(2) 7/8 - 1/8 = _____(3) 4/9 + 1/9 = _____(4) 9/12 - 4/12 = _____2. 完成下列各题,并计算结果。
(1) 2/3 + 1/4 - 1/6 = _____(2) 5/6 - 1/3 + 1/2 = _____(3) 3/5 + 2/7 - 4/35 = _____3. 老师有2/3块巧克力,她分给小明1/6块,分给小红1/4块,请问她还剩多少块巧克力?4. 小华妈妈帮他买了一箱牛奶,共有8/9升,她把其中的3/18升倒掉了,请问还剩下多少升牛奶?小节四:混合运算1. 计算下列各题的结果,并用适当的符号填空。
五年级上册口算天天练100题及答案口算天天练100题一、填空题1. 3 + 8 = ?2. 15 - 7 = ?3. 6 × 4 = ?4. 24 ÷ 6 = ?5. 9 × 5 = ?6. 35 ÷ 7 = ?7. 12 + 6 = ?8. 36 - 18 = ?9. 24 ÷ 8 = ?10. 16 × 3 = ?二、选择题1. 3 × (4 + 2) =A. 12B. 18C. 24D. 362. 若一盒有16支铅笔,那么10盒一共有多少支铅笔?A. 10B. 60C. 160D. 1003. 78 ÷ 6 =A. 11B. 13C. 14D. 154. 5 + 7 - 3 =A. 11B. 9C. 4D. 125. 若一本书的厚度是2厘米,那么15本书的厚度是多少?A. 17cmB. 25cmC. 30cmD. 14cm三、计算题1. 43 + 28 - 15 = ?2. 56 - 29 + 11 = ?3. 45 × 2 + 10 = ?4. 72 ÷ 8 × 3 = ?5. 63 ÷ 9 + 5 × 2 = ?四、解答题1. 小红身上有48元,她用15元买了一本书,还剩下多少钱?2. 每盒饼干有24块,小明买了4盒饼干,他一共买了多少块饼干?3. 李华把54颗糖分给6个小朋友,每人能分到几颗糖?4. 小明家里有72颗苹果,他想平均分给8个朋友,每人可以分到几颗苹果?5. 若一个数字加上5的结果是12,那么这个数字是多少?答案:一、1. 112. 83. 244. 45. 456. 57. 188. 189. 310. 48二、1. B2. C3. B4. A5. C 三、1. 562. 383. 1004. 275. 20四、1. 33元2. 96块3. 9颗4. 9颗5. 7。
Part1:口算8.76×0.5= 5÷2.5= 4.75-0.98= 0.54+3.27= 7.47+2.86=37.35+6.97= 3.6×5.9= 8.4÷12= 10.3-8.7= 3.4+5.9=Part2:脱式计算0.32×99+25×0.07 8.76×4.5-15.7×0.14(13.6-4.17)÷2.5 15.32×4+4.68÷0.25Part3:解方程4×4.5-3χ=6.36 5.1χ-3.5χ=0.8χ÷12.5=8 8χ=4Part1:口算0.37×4= 7.49+12.8= 16.2÷40= 15.32-13.6=1.2÷0.8=0.68+3.75= 21.5+6.8= 0.6×69.3= 310÷50=22.7-6.58=Part2:脱式计算(58.4+15.6)×2.3 168-3.76×20+7.380.8×[(5-0.68)÷1.2] 2.5×3.2×12.5Part3:解方程χ÷1.36=5.4 0.75χ=30.5χ-0.2χ=15 6÷30=χ÷0.5Part1:口算169÷13= 10.3-1.42= 90×2.14= 3.57+4.64=156÷40=8×6.34= 1.57+7.46= 10.8-5.13= 135÷30=4.96+2.25=Part2:脱式计算3.9+(10-0.6)÷8 9.56×4.25+0.25×4.40.27×1.9-0.83 48×2.7-1.8×15Part3:解方程1.25-3χ=0.5 1.4÷4χ3.5÷χ(χ-0.4χ)÷1.4=3.3 4χ-0.4=8.4Part1:口算+ = - = + = + = - =+ = + = + = - = + = Part2:脱式计算-( + ) + ++ + + -( + )Part3:解方程χ+ = χ- =2 1 20 173 2 3 14 1 3 1 6 1 4 1 85 3 2 5 1 12 5 12 76 1 8 57 3 4 3 6 5 7 2 5 2 85 98 31 92 54 15 11 103 9 2 54 9 25 1 20 7 125 73 43 125 83χ- =1 χ- =Part1:口算- = 1- - = + -2= + = + - =- = - = - = + = + = Part2:脱式计算+ + = + -+ - 2- -Part3:解方程χ+ χ=28 χ=45χ- = +χ=2 1 101 201 2 1 51 3 1 37 5 2 101 41 42 51 5 12 1 4 1 5 1 15 13 5 2 7 9 6 1 5 3 32 5 4 21 31 21 3 1 41 7 5 6 5 8 5 12 5 15135 2 5 2 103 54 6 1 2 1Part1:口算- = + = + = - = - =- = + = + = - = - = Part2:脱式计算+( - ) - +-( - ) -( + )Part3:解方程2χ- = χ+ =-χ= χ-( - )=54 121 65 83 54 32 73 83 81 125 41 12 1 2 1 9 4 8 7 6 1 9 5 7 4 52 15 2 6 5 73 83 125 31 85 12 7 9 8 9 2 412 1 12 11 65 61 31 76 127 4 1 24 5 16 7 247× = ÷ = ÷ = ×30 = + =10.8÷0.9= 1.5×0.25= 0.5×3.2= × ×14= 9-2÷8=Part2:脱式计算( + + )×72 ( - ÷ )×÷[( + )× ] ÷( - )×( - )Part3:解方程χ- χ= 2.5χ+3.6=9.61 -3χ= 1 ÷4=3.5÷χ103 43 65 65 53 61 53 61 152 73 3 1 125 9 1 83 54 41 87 195 6 5 3 2 4 3 34 3 9 4 65 2 1 65 21 52 6 1 15 14 4 1 2 1 522.8÷0.25= 2.75+1 = 3 +10.2= 0.125×8= 6.3÷0.07=1-0.1= - = ÷ = - = 7.5× =Part2:脱式计算9 ×4.25+4 × × + ÷548×( + + ) ( + )×6+Part3:解方程2χ+2.7=24.7χ- χ=9÷χ= ÷ χ+ χ=42 4 1 12 7 4 1 54 5 1 53 7 6 54 43 3 2 65 41 61 54 76 51 6 5 63 12 7 63 13794 2110 5 1 31 32 21Part1:口算305-199= 6.7+4.3= 0.3+0.32= 8÷0.02= 2.05×4=+ = 12÷ = + = ÷ = +0.4=Part2:脱式计算11×( + )×7 ×101-9÷25560÷16÷5 6÷ - ÷6Part3:解方程+χ=χ- =0.253 2 10 3 6 5 9 1 5 2 6 14 3 6 1 83 11 2 71 259 7 6 76 94 65 2 414χ- =8.4 ÷χ=7÷Part1:口算3.2-2.7= 0.125+ = 0.75- = -0.5= ×0.5=×1.2= × = ÷ = + = - =Part2:脱式计算( + )÷ 10÷[ -( ÷ + )]×[ ÷( + )] ÷7+ ×Part3:解方程12÷14=χ÷3.5 4.2χ- =1027 247 8 7 4 1 3 2 52 6 5 83 214 9 2 185 9 26 5 4 3 83 1514 38 135 265 52 83 9 8 6 54 3 11 4 114 7 6 5121.6÷χ=1.2-0.4 χ÷3.14=3Part1:口算10-0.76= 4.8× = 0.6+ = +0.2= +0.125=0.4- = + = - = - = ÷ = Part2:脱式计算24×( + - ) ( + - )×30( + )÷ + 68×3.5-40.8÷0.24Part3:解方程÷χ=0.15÷0.18χ- χ-5=183 4 1074 3 41 5 3 8 5 7 12 13 1 9 1 5 6 6 5 3 1 73 4 3 6 5 32 5 2 6 1 152 5 4 4 13 7 23 3 20.4χ+ χ= ÷ 1.2=0.8 ÷χPart1:口算0.68×50= 18.84+1.5= 8.3-3.4= 3.9×0.3= 8.6×8=+ = ÷3= × = + = + =Part2:脱式计算4.3÷ +7.7 × ÷(1÷ -2.5)+(736÷16+37 ) ×18 ( + - ) ÷Part3:解方程χ+ χ=66 ÷χ=0.75÷1.8 23 11 9 5 1 30 7 52 83 3 2 3 24 35 2 4 3 514 156 6 5 101 52 8 7 6 5 12 5 241 4 3 6 1 34χ- χ- =1 =0.12÷1.5Part1:口算0.25×104= 736+37= 0.7×68.3= 5.4-3.9= 0.24×5=+1.2= 3÷ = + = - = - = Part2:脱式计算( + - ) ÷ [ -( - )] ×( + )× ( - ) ÷[ ×( - )Part3:解方程5 2 χ6.411 5 5 4 5 1 4 3 3 2 8 3 9 2 5 2 41 52 6 5 15 7 30 1 6 5 14 5 7 2 187 3 2 9 2 8 7 16 5 4 3 7 5 41 5 3 3 1 1χ- χ= 3.2χ-2χ=189χ+13.5=16.2 ÷ = 0.8÷χPart1:口算14÷35= 0.77+0.33= 3.14×4= 0.3+ =22.3-19.5=+ = + = - = × = ×4+4× =Part2:脱式计算2+0.45÷0.9-0.75 (9.7-2.15-4.85)÷0.9+6.4× × + +Part3:解方程4 3 32 920 3 2 161 3 1 7 6 5 42 1 527 5 15 14 5 4 5 1 8354 5 1 837 83χ÷3.5= +0.3(χ+ )= χ+0.11.2(χ- )÷ =0.75 (9-7.6)χ- =χ+2.4Part1:口算3×0.64= 7÷1.4= 18÷360= 2.1+ = 8 -2.5=× = 81÷ = - = + = ×2 =Part2:脱式计算÷[ -( + )] ( + - )÷10.26-3.78+ 0.65×14-2 115 1412 75 3 5 43 253 4 951 5111 152 1 11 15 114 5 1 6541 125 121 41 43 41 43Part3:解方程(3.7+2.8)χ- =12.75 + χ=( -0.4)χ+0.25=χ- ×(χ-1.2)-0.72=0.3χ+Part1:口算4.32-1.74= 3.65+0.47= 0.4×25.2= 135÷30= 64.1-35.3=56× = × = 5×3 = × = × =Part2:脱式计算 56 ÷27+8 ×0.875 (11.1×66-18.5×8)÷3.7[7-(1 × +1 × )]÷1.75 125 -(11 -4 +12.25- )10031 50 1114 9121 2512 11 30 7 9 48 315 29 416 3131 714395 9 4 4 3 8 743 203 207Part3:解方程12÷(χ+ )=1.2 χ- χ== χ+ χ= 42Part1:口算4.7-3.72= 6.57+13.6= 2.39-1.4= 9.2-4.47=62.4+37.92=- = + = - = + = ÷1 =Part2:脱式计算2 +1 ×2 6 -1 ×10 ÷2 - 1 + ÷5 4 8 3 27 4.50.831 32 107 43 72 32 65 6 13 16 112 79 75 1 7121 7 23 181 24 18 154 31Part3:解方程+2χ= 5χ-3× =3χ- × = χ- χ=1Part1:口算6.4-3.65= 3.5+12.75= 24.3-12.58= 34.26+78.9 24-0.15=- = × = ÷ = - = + = Part2:脱式计算16-(9 + ÷ ) (3 -2 × )÷4( - ÷2)× 2 ×(10-3 )÷4 1 2 1 57 5 2 43 5 9 54 10 3 3 2 31 12 1 52 32 43 51 4 110 113 102513 1545 4 8 3 10 1 75 10 3 8 36 57 3 6 1 3 2Part3:解方程2(χ+ )=3χ-5 - χ- χ=90× + χ=20 0.2χ+ =8-1 χPart1:口算249+49= 312.4-11.48= 426.1-42.49= 461-414.1= 240.15-48.1=× = + = - = ÷ = - =Part2:脱式计算4 ÷16+3 × 15-3 ÷ ×22 - ×2+1 ÷ - ×4 1 6 1 31 6 12 15 453 74 21 72 98 83 7 1 9 29 22 1515151517 4 8 5 946 1 9 57 2 5 3 4 38 7 43Part3:解方程-χ= χ+2 =4.25χ+ χ=121 χ-(1 + )=4.5Part1:口算42.15+3.48= 34.45+349.5= 84.26+24.66= 94+32.8= 15.15-9.2=÷ = - = - = + = + = Part2:脱式计算1÷ + ×(3 ÷2 ) (2-3 × )÷(4 ÷3 )1110 32 127 4 1 3 2 3 2 6111 2 11 9 5 1 5 1 52 55 44 16 5 15 83 74 51 157 245 8 3 9 7 2 1 95 7 2 14 5 3 2 8 5 7 56 1 3 1 97 65 4 31 ÷(1 × + ÷1 ) 3 + ×(1 - )÷2Part3:解方程(χ+ )×7=8.1 37.5+ +χ=69= χ-1- χ=2Part1:口算16.43+8.48= 292.4-72.56= 245+28.1= 10.01-5.4= 183+873=× = + = - = - = ÷ = Part2:脱式计算(1 +6 +2 +3 )× [9-( + )×24]÷13.6χ1.253 2 8 5 3 1 8 3 1415 3 8 1 12 1 8 74 38 1 6 1 9 5 8 3 3 2 651 ÷ -1 ×1 +32 +1÷3.8×3 -3.5Part3:解方程χ- + = χ- χ=χ+ χ=11 + χ=Part1:口算156.4+87.82= 25.42-12.8= 21.1-9.42= 63.1-4.2= 46.5+63.9=+ = - = ÷ = × = + = Part2:脱式计算(1 × +5 ÷ )÷11 (8.25-6 )÷(2+4.2)×7107 51 32 65 32 121 7 3 43 4 1 4 3 2 1 5 27 420 72 15413 8 42 13 7 5 21 8 8 5 15 4 3 1 72 43 5 3 8 5 95 18 1 76 157 2 1 5 3[1-(4 -1.25×2)]÷3.5 1.25×3.9×2.1÷(3.5×2.5×0.39)Part3:解方程2χ+ =4.625 -2χ=-3χ= +21.5= χPart1:口算9.82+4.5= 241-34.1= 45.6-42.26= 63.75+62.5= 47.16-24.8=+ = - = + = × = 0.25÷ =Part2:脱式计算(7.8×1 -4.6)÷18 5 5 4 41 87 16 11 2 1 983110.5×7.23.6×2.1+3.5×2.4 13 3 32 43 6 1 9 2 5 2 8 5 43113 +886 ×0.25+0.625 3×25 +37.9×6Part3:解方程χ- χ=0.2 χ+ =1 ×3+2.75χ=6 9 χ=5 ×1Part1:口算10.58-5.8= 456.4+369.45= 434+147= 34.15-23.5= 482.4-64.23=+ = - = ÷ = × = + =Part2:脱式计算383 ×7.9+79×61 6.8× +0.32×42-8319 5 7 2 2 1 3 1 2423 4 3 8 5 6 1 7 1 19 5 5 2 5 24 3 85 258 6 5 5 1 5 3 2749 4 9 7 14 3 5341 × +51 × +61 × (5 -0.8+2 )×(7.6÷ +2 ×1.25)Part3:解方程5.6χ- χ=4.8 χ- χ=2.4-1 =3.2-χ 1 -2χ=Part1:口算37.78+3.65= 482.4-39.8= 24.15-8.3= 341.92+74.2= 357+159.2=× = - = + = - = ÷ = Part2:脱式计算4 3 3 1 3 12 1 21 41 53 53 3 14 3 4 15 4 5 19 45 45 2 9 5 4 3 9 1 616 5 72 43 7 1 8 7(9 +7 )÷( + )÷34Part3:解方程3χ- χ= (1- )χ=÷χ=0.8 4( +χ)=7Part1:口算167-88= 35.4÷0.5= 42.3×0.4= 87.5+23.61= 54.5-4.26=÷ = + = + = - = - =10051 1918 5 4 5 1 25 4 87 43 5 -4 ÷5 (4 +0.75)×3 7 2 3 2 13 9 45 46 1 15 8 18.25-5 × 3 0.1+ +7 ÷1.25 5 28 1 51 2 1 1277 4 8 3 7 5 3 1 2 1 7 55 4 9 8 9 7Part2:脱式计算( + + )×2 16.8×[(2.4+ )÷1.12-1 ]8.4×[(1.2+3 )÷3.4- ] ×1.375+215 ×Part3:解方程÷χ=χ÷ =30χ÷ = ÷ (χ+3)× =48Part1:口算137.8+4.4= 134.2-54.89= 15.8+348= 201.4-24.51= 463.1-82.4=213 1 35 6 45 26 25 13 65 54 72 30 1 35 1 63 1 31 6 5 31 21 19 18 191 8 3- = + = - = + =+ =Part2:脱式计算[24.8+(3 -2.5)×2 ÷10]÷3 1 +[2 -(2 -1.875)]÷2[2 -(8.5-2 )÷3.5]×7 [4 ÷(2 -1 )-9 × ]×1Part3:解方程÷ χ= ÷ 2 ÷χ=2(13-χ)× =6 2χ+1 =2Part1:口算1218 5 4 3 43 25 18 7 3 25 7 35 6 9 2 13 10 8 14 3 14 3 121 4 321 5 3 1 11 9 2 1 7 4 2 1 3 2 5 3 51 152133-54.2= 34.8+46.62= 534.68-26.8= 45.15+39.8= 8.64+37.6=- = - = - = + = + =Part2:脱式计算1 ÷[2 - ×(1.7+1 )]×0.16 [2-(5.55×1.4-2.7÷0.4)]÷0.1350.625×(1 +3 )+ ÷1 - [26.5× -(8.3-7 )+4 ÷2 ]÷11Part3:解方程χ+(3χ-16)÷=10(χ+1) 7(6.5+χ)=87.50.1(χ+6)=3.3×0.4 3 χ+1.2χ=2541 5410 7 3 1 29 12 51 32 6 16 15 38 5 8 340 372 13 24 15 3 10 7 5 3 4 16 5 3 1 73 4 3 12 7 94Part1:口算19.2-4.82= 14.1÷0.2= 165.4+37.56= 3.25+48.5= 154.3-64.12=+ = - = - = - = + = Part2:脱式计算[(11 -3 ×1 )-8 ÷3.6]÷2 ÷2 -1 × ÷7+ ×[( +4 ÷1.5× )÷2 -0.83]÷ 4 - +0.125-3Part3:解方程- =1 2χ- =2+ 3 2χ+1 3 χ-1 χ+2χ-3 2 χ+1 2χ+1χ-1χ+29 1 5 317 2 5 2 25 6 1310 29 19 5 2 13 11 5 1 6322 16 7 8741 7 4 8 35 310051 28 714 11 41 11 5 8 313 7 52 43 5 372 65Part1:口算4.7-3.9= 46.1-45.61= 81.37+23.9= 93.18+82.55= 56.1-34.51=+ = + = - = + = + =Part2:脱式计算[0.314÷15.7+(3-1.47)×6 ]÷102.2×( -0.375) 1 ÷0.25×2(0.873× +0.127× )×5 24×( -0.25+ )Part3:解方程χ-0.95×4=8.5 - =504 3 0.5 χ-3 0.2 χ+4 32 8 5 52 4 1 5 2 27 5 27 5 83 657 57 29 211 513 59 45 45 47 29 3- =1 - =0.5χ+2Part1:口算3.58+6.8= 184.4-65.7= 36.6+14.84= 20.36-18.5= 37.8+69.32=+ = - = + = - = × = Part2:脱式计算( - ÷2)× +1÷1 (1 + ×1 )×0.6253.28-2 +6.72-5 6 ÷0.8+1 ×1Part3:解方程- = 0 +1 =23-χ3χ+4 62χ+1 4χ+55383 53 11 9 11 2 4141 101 133 121 25 18 25 11 12712 119 1 9 49 2 6 1 11 6 73 5213 5= -1 - =1Part1:口算15.06-8.9= 34.8+66.91= 498.6-49.26= 69.4+24.16= 0.2×45.5=0.39÷ = - = - = + = + = Part2:脱式计算[5-3 ÷(1 +2.25× )]÷ 1 ×(1.4- - + )(3 -1.5+4 )×120 ( +1 ÷ )×2Part3:解方程+χ=3+ - - +3=015 723χ-15 4χ-6 62χ-34χ-2 31+χ5χ-2 10χ+3 32χ-521 81 87 31 87 81 31 6 165 3 15 29 421 167 420 13 4 1 4 36 1 6 18 5 725 3×(χ+10)= ×(5χ-6) 0.75+ χ=6Part1:口算985+458= 12.4-9.47= 30.1÷0.2= 64.65+426.9= 132.59-85.8=- = 2.4× = - = + = + =Part2:脱式计算1.25×3 -1 +9.2× 7 ×5.2+15.2+2 ×7(16.25-13 )÷1 + ×3 ÷(1.1- )+ ×Part3:解方程=(χ+7)÷11 + χ=55 4 5 1 43 9χ2 14 14 35 15 447121111 153 54 53 45 5 4 41 8χ43 12 5 12 5 8 1 94 127 14 9 2 1 15 4 6 118:0.2=χ: 1.2:χ=5:1.5Part1:口算0.3×51.9= 16.84+924.3= 751.7-46.82= 45.9+3.21= 46.42-38.5=+ = + = ×0.32= - = - =Part2:脱式计算×(2.5- )+ ÷0.25 4 ÷ -1.4×(1- )3.56×2 -1.56×2 -2 2.4÷ -9.6× +6 ×1.5Part3:解方程χ+ =240χ- χ=1.2 4 37 37 37 3 43 4 3 4 1 12 5 52 31 3 25 441χ 4 12 516 516 94 3 10 316 310 315 48 5:2.5=6:χ 12:1.4=3χ:3.5Part1:口算121.4-25.74= 319.6+62.43= 34.11-17.7= 37.45+24.18= 41.7÷3=÷4= - = ÷0.4= + = - = Part2:脱式计算1 ×[7 +(14.625-3 )-4 ] ×5 - ÷0.35+(11.7-8.4×1 )÷1 2 ×3.5×3 -1 ×9Part3:解方程32 31 81 65 21 32 41 21103103 3 2 10 97 2 4 119 2 11 8 13 9 524 1 10 3 2 1 1016.4:2χ=12:1.5 χ-0.45=63 -(0.83+χ)=1.4 4(χ-5.6)=1Part1:口算24.2÷0.4= 56.8+54.62= 34.29-24.5= 292.4-74.6= 6.66+54.8=÷0.6= - = + = + = - = Part2:脱式计算84 ÷14+16 × -(1- ) ( - ÷2)×21× +0.32× - ×12+ ×0.32 2 ×(10-3 )÷73 139 72 134 2 1 2 1 14 1 14134 1 101 1310 25 13 1544 3 537 45 3 5 36 11527 315 49 28 5Part3:解方程45×(χ-83)=36(χ-75) 48×(34-2χ)=56(χ+2)24×(2χ-63)=18×(χ+16) 6.3×(1.8+χ)=8.4×(1.6-χ)Part1:口算74.9+34.81= 0.04×24= 68.2-16.52= 34.16-16.5= 46.5+3.69=- = × = + = ÷ = + =Part2:脱式计算× - ÷0.5 ÷ ÷0.9-(0.5+ - )÷ 0.25÷(0.3÷ )×0.618 11 12 5 43 41 61 5 1 7 1 7 1 75 41 103 7 222 15 25 11 11 2 3124 7 61 12 5 9 2Part3:解方程χ+0.9=1 χ÷1.1- =×(χ+6.3)=2 ÷(1.2-χ)=Part1:口算0.5×5.48= 13.35-4.68= 248.2+32.48= 21.45-14.8= 49.01-11.4=+ = - = - = × = ÷ = Part2:脱式计算0.6- ÷0.3× +0.5+ ÷( + )÷0.4-0.125 ÷(0.8÷ )×0.47 3 13 12 39 4 4 1 101 4 1 11 6 72 70 1 43 43 3053 5 2 6 53 26 5 5 1 10 3 109 74 28 15 10 7 5 4 119319 5 11 4Part3:解方程+ χ- = +χ÷0.1=6( +χ)×2.9=11 (χ+9.3)÷3.9=2Part1:口算76.84+32.4= 290.2-54.32= 23.58-19.8= 63.3÷0.6= 24.7+54.63=6÷ = - = + = × = ÷0.4=Part2:脱式计算+ ÷0.9× + ÷ ÷0.1÷ ×(0.4+0.7) ×(0.1÷ )+0.57 320 378 355 3 5 343 41 21 61 61 98 21 41 81 32 32 10 1 10 7 4 17 4 5 24 34 19 19 89 8Part3:解方程+ χ= + ÷χ=1×(χ+5.1)=3 ×(χ÷ )=Part1:口算0.3+0.32= 10.8÷0.9= 9-2÷8= 43.15-34.6= 94.8+45.62=4÷ = + = - = + = × = Part2:脱式计算÷0.9+0.9- ÷0.4- ××(0.5-0.1÷ ) 0.25×(0.4÷ ÷ )4 3 25 18 24 5 9 2 8 5 8 5 19 10 18 7 181 10 9 32 1547 3 2 1 81 52 51 103 5 2 10 1 65 11 5 814 3 3 25 4 94Part3:解方程5(χ+4)+6=12(χ+1)-7 - =- = χ+ =Part1:口算2.8÷0.25= 19.68+34.2= 152.14-3.54= 51.15-31.5= 15.6×0.7=× ×14= - = × ÷ = ÷ - ÷5= ( + )×30= Part2:脱式计算 +0.4- ÷ ÷ × ÷0.6×( × )÷ ×( × )+ 7 3 92χ+17 27 4 22χ-165 3χ 3 1 9 421 51 54 53 6 14 1 103 101 101 5 42 1 81 10 1 32 3 2 15 14 61 4 3 6 5 9 5 6 5 6 1 6 5 5 3 61Part3:解方程2(χ+1)÷3=24÷36 (χ-1)= (χ+1)χ+0.8=1 χ+ ÷ =Part1:口算18.95-6.76= 8.64×3= 132.7-29.61= 16.68÷0.4= 39.29+16.37=+ × = + = 7.5× = ÷ = 24×( + )= Part2:脱式计算× ÷0.4+0.7 0.5— ÷ +0.35 310 721 5 4 7 3 4160 53 103 53 54 61 8 5 10 36 16 59 11276 53 27 6+ ×( ×0.9) ×( ×0.6- )Part3:解方程12χ: 5=48: 20 (χ+1): 10=(χ-1): 5(χ+0.9)×0.7= χ+ =Part1:口算46.15-32.5= 56+24.15= 745.5+64.85= 94.2-4.42= 54.56+87.8=( + )×6+ = 12÷ = ÷ = ( + )÷ = + =Part2:脱式计算+ ÷0.1+0.3 ÷0.9× -5 4 15 275 56 2 1 8 1 2 1 4 1 91 13 76 115 1420 72 732 32×0.6×(0.125+ ) ÷( + ×0.7)Part3:解方程(3χ+1): (χ+1)=2:1 (4χ+3): 5=χ: 1χ- = - χ=Part1:口算128.4-76.54= 34.5+87.15= 15.2÷50= 184.25-64.5= 58.4+64.76=× + ÷5= + = 6÷ = 1÷3× = × =Part2:脱式计算4 ×2 +4 ×4 +6 ×4 4 ÷16+3 ×8 321 48 1 4 1 6 5 54 10 9 8 7 16 1 32 19 49 14 7 3 49 8 13 7 137137 7 172 74 7 4 21 72 5 47 6 7 65 26 17 63 1[(3 -2.75)÷1 +2 ]÷2 15-3 ÷ ×2Part3:解方程- χ= ÷ χ=+ χ= × χ=1Part1:口算2.75+19.3= 0.9×18.5= 19.4-6.54= 32.8+56.42= 631-67.9=÷ = 56× = + = - = 3.6× = Part2:脱式计算3.14×4 +3.14× -0.314÷ 1÷ + ×(3 ÷2 )4 3 22 33 12 7 222 33 222 3 3 27 1 515 46 5 9 8 8 3103 25 18 15 1 11 9 11 2 55 345 1 7 33 219 11 6 1 5 3 6 1 15 47 38 3 149 18 5 9 2 9 42 ×( + )+0.8 2.4×(2- × )÷0.125Part3:解方程χ+ =0.8 χ- =0.251 χ×2 =0.4 χ÷ =2.3-1Part1:口算44.9+58.8= 54.3-27.3= 0.8÷327= 30.1-1.44= 112-97.5=×0.45= 9× + = + = × - = - = Part2:脱式计算(0.3- )×1 ÷0.125 ( + )÷ -4 35 2 65 20 321 21 31 53 181338 392 6 53 19 8 5 4 6 5 6 59 18 7(4÷7+ )×6- 2 6526+450÷18×101Part3:解方程×(χ+2.2)=2 ×(χ-5.1)=1×( +0.3χ)= ×(1 -0.1χ)=Part1:口算49.8+26.82= 71.3-58.62= 491-346= 72.18÷9=48.5+75.81=7× + = ÷6= 6×( + )= 31× - = - =Part2:脱式计算(0.6× + ×1.2)÷1 ( ×4 + )÷ ÷2 2 1 21 10215 6 1 7572+0.5 73 18 7 21 61 34 87 43 125 172 83 5 2 94 1275 3 8 7 76 6 5 6 58 349 514 33 2÷[( - )÷ ] 36×( + - )Part3:解方程- ÷ χ= + ÷1 χ=- ÷ χ=0.25 0.375+ ÷1 χ=Part1:口算28.2+575= 60.5-8.38= 80×2.14= 530-80.4= 53.94+65.5=×18-14× = × + = × + = × + × = + ÷ =Part2:脱式计算7 3 16 15 14 3 53 10 712 713 10 16 3 22 9 127 30 737 1435 2612115 16 5 9 5 6 1 3 2 3 2 5 4 3 2 4 3 22 9 11 1 21Part3:解方程×(0.1χ÷ )= ×(1.6χ× )=÷(3.5χ÷ )= ÷(2.4χ× )=Part1:口算81.62-67.8= 20.4-9.64= 72.8÷40= 29.67+33.3= 28.59+32.5=14× - × = × + = - × = 3× + = × + =32 17 25 36 1 7154 2 1 2×9÷8+1×45÷45×6÷4+2.5×3÷2 21 1 5 4 54 1 16 7 9 4 12 7 9 7 3516 20 7 5 4 8 3 7 3 7 524 94 35 2 9 215 126 57 23 13 5。
Part1:口算8.76×0.5= 5÷2.5= 4.75-0.98= 0.54+3.27= 7.47+2.86= 37.35+6.97= 3.6×5.9= 8.4÷12= 10.3-8.7= 3.4+5.9=Part2:脱式计算0.32×99+25×0.07 8.76×4.5-15.7×0.14(13.6-4.17)÷2.5 15.32×4+4.68÷0.25Part3:解方程4×4.5-3χ=6.36 5.1χ-3.5χ=0.8χ÷12.5=8 8χ=4Part1:口算0.68+3.75= 21.5+6.8= 0.6×69.3= 310÷50= 22.7-6.58=Part2:脱式计算(58.4+15.6)×2.3 168-3.76×20+7.380.8×[(5-0.68)÷1.2] 2.5×3.2×12.5Part3:解方程χ÷1.36=5.4 0.75χ=30.5χ-0.2χ=15 6÷30=χ÷0.5Part1:口算169÷13= 10.3-1.42= 90×2.14= 3.57+4.64= 156÷40=8×6.34= 1.57+7.46= 10.8-5.13= 135÷30= 4.96+2.25=Part2:脱式计算3.9+(10-0.6)÷8 9.56×4.25+0.25×4.40.27×1.9-0.83 48×2.7-1.8×15Part3:解方程1.25-3χ=0.5 1.4÷4χ3.5÷χ(χ-0.4χ)÷1.4=3.3 4χ-0.4=8.4Part1:口算+ = - = + = + = - =+ = + = + = - = + = Part2:脱式计算2 1 32 31 41 31 61 41 8 5 32 51 125 12 7 61 85 73 43 65 72 52 85+ + + -( + )Part3:解方程χ+ = χ- =χ- =1 χ- =Part1:口算- = 1- - = + -2= + = + - =- = - = - = + = + =Part2:脱式计算+ + = + - 20 17 125 5 4 2 1 9 2 5 4 9 2 5 1 20 7 125 73 43 125 83 65 101 201 5 1 3 1 3 7 52 10 1 4 1 4 2 5151 21 41 51 15 13 52 7 9 61 53 32 5 4 2 13 1 2 1 3 1 41+ - 2- -Part3:解方程χ+ χ=28 χ=45χ- = +χ=Part1:口算- = + = + = - = - =- = + = + = - = - = Part2:脱式计算+( - ) - + 5 4 121 2 175 6 5 85 12 5 1513 5 2 5 2 103 5 46 12 165 83 54 32 73 83 81 125 41121 21 94 87 61 95 74 52 152 65 7 3 8 3 125 3 1 8 5-( - ) -( + )Part3:解方程2χ- = χ+ =-χ= χ-( - )=Part1:口算× = ÷ = ÷ = ×30 = + =10.8÷0.9= 1.5×0.25= 0.5×3.2= × ×14= 9-2÷8=Part2:脱式计算( + + )×72 ( - ÷ )×103 12 7 9 8 9 2 41 2 1 12 11 65 61 31 76 127 4 1 24 5 16 7 247 43 65 65 53 61 53 61 152 73 31 12 5 9 1 83 54 41 8 7 195Part3:解方程χ- χ= 2.5χ+3.6=9.61 -3χ= 1 ÷4=3.5÷χPart1:口算2.8÷0.25= 2.75+1 = 3 +10.2= 0.125×8= 6.3÷0.07=1-0.1= - = ÷ = - = 7.5× = Part2:脱式计算9 ×4.25+4 × × + ÷548×( + + ) ( + )×6+ 41 127 5 26 1 15 14 41 21 52 41 54 51 53 76 54 43 3265 41 61 54 76 51 65 63 127 63 137Part3:解方程2χ+2.7=24.7 χ- χ=9÷χ= ÷ χ+ χ=42Part1:口算305-199= 6.7+4.3= 0.3+0.32= 8÷0.02= 2.05×4=+ = 12÷ = + = ÷ = +0.4= Part2:脱式计算11×( + )×7 ×101-9÷25560÷16÷5 6÷ -÷6 3 2 94 2110 51 31 32 21 6 5 9 1 5 2 6 1 43 6 1 83 11 2 71 259 76 76Part3:解方程+χ= χ- =0.254χ- =8.4 ÷χ=7÷Part1:口算3.2-2.7= 0.125+ = 0.75- = -0.5= ×0.5=×1.2=× = ÷ = + = - = Part2:脱式计算( + )÷ 10÷[ -( ÷ + )]×[ ÷( + )] ÷7+ ×10 3 27 247 94 65 52 94 2187 41 32 52 6 5 83 214 9 2 185 9 26 5 4 3 83 1514 38 135 265 52 83 98 65 43 114 114 7612÷14=χ÷3.5 4.2χ- =1021.6÷χ=1.2-0.4 χ÷3.14=3Part1:口算10-0.76= 4.8× = 0.6+ = +0.2= +0.125=0.4- = + = - = - =÷ = Part2:脱式计算24×( + - ) ( + - )×30( + )÷ + 68×3.5-40.8÷0.24Part3:解方程÷χ=0.15÷0.18 χ- χ-5=18 34 10 7 43 41 53 85 71 2 1 31 91 56 65 31 73 4 3 6 5 32 5 2 6 1 152 54 41 3 7 233 20.4χ+ χ=÷ 1.2=0.8 ÷χPart1:口算0.68×50= 18.84+1.5= 8.3-3.4= 3.9×0.3=8.6×8=+ = ÷3= × = + = + =Part2:脱式计算4.3÷ +7.7 × ÷(1÷ -2.5)+(736÷16+37 ) ×18 ( + - ) ÷Part3:解方程χ+ χ=66 ÷χ=0.75÷1.8 2311 9 5 1307 52 83 3 2 3 24 35 2 4 3 5 1 4 1 56 65 101 52 8 7 65 125 241 4 3 6 1 34χ- χ- =1 =0.12÷1.5Part1:口算0.25×104= 736+37= 0.7×68.3= 5.4-3.9= 0.24×5=+1.2= 3÷ = + = - = - = Part2:脱式计算( + - ) ÷ [ -( - )] ×( + )× ( - ) ÷[ ×( - )Part3:解方程χ- χ= 3.2χ-2χ=189χ+13.5=16.2 ÷ = 0.8÷χ5 2 χ6.4 11 5 5 45 14 3 3 2 8 3 9 25 2 41 52 6 5 15 7 301 6 5 14 5 72 18732 92 8 7 165 43 75 41 53 5 3 5 1 101 20 3 21Part1:口算14÷35= 0.77+0.33= 3.14×4= 0.3+ = 22.3-19.5=+ = + = - = × = ×4+4× = Part2:脱式计算2+0.45÷0.9-0.75 (9.7-2.15-4.85)÷0.9+6.4× × + +Part3:解方程3χ÷3.5= +0.3(χ+ )= χ+0.11.2(χ- )÷ =0.75 (9-7.6)χ- =χ+2.44 3 329 61 3 1 7 6 5 42 1 52 7 5 15 14 5 4 5 1 83 54 51 83 78 53 10 9 3 221 41 52 543×0.64= 7÷1.4= 18÷360= 2.1+ = 8 -2.5=× = 81÷ = - = + = ×2 = Part2:脱式计算÷[ -( + )] ( + - )÷10.26-3.78+ 0.65×14-Part3:解方程(3.7+2.8)χ- =12.75 + χ=( -0.4)χ+0.25=χ- ×(χ-1.2)-0.72=0.3χ+Part1:口算4.32-1.74= 3.65+0.47= 0.4×25.2= 135÷30= 64.1-35.3= 2 11514 127 10031 53 54 3 253 49 5 1511115 21 1115 114 5165 41 125 121 41 4341 65 95 43 1211 30 75356× = × = 5×3 = × = × =Part2:脱式计算56 ÷27+8 ×0.875 (11.1×66-18.5×8)÷3.7[7-(1 × +1 × )]÷1.75 125 -(11 -4 +12.25- )Part3:解方程12÷(χ+ )=1.2 χ- χ== χ+ χ= 42Part1:口算4.7-3.72= 6.57+13.6= 2.39-1.4= 9.2-4.47= 62.4+37.92=- = + = - = + = ÷1 = 131 9 443 8754 83 27 4.5 0.85 1 7 1 2 1 7 2 3 1 8 1 24 1 8 1 5 4 312 +1 ×2 6 -1 ×10 ÷2 - 1 + ÷Part3:解方程+2χ= 5χ-3× =3χ- × = χ- χ=1Part1:口算6.4-3.65= 3.5+12.75= 24.3-12.58= 34.26+78.9 24-0.15=- = × = ÷ = - = + = Part2:脱式计算16-(9 + ÷ ) (3 -2 × )÷4 4 1 2 1 57 5 24 3 595 410 365 6 131 61 9 73 2 31 121 52 3 2 4 3 515 4 8 3 10 1 7 5 10 3 8 3 65 7 36 1 3 2( - ÷2)× 2 ×(10-3 )÷Part3:解方程2(χ+ )=3χ-5 - χ-χ=90× + χ=20 0.2χ+ =8-1 χPart1:口算249+49= 312.4-11.48= 426.1-42.49= 461-414.1= 240.15-48.1=× = + = - =÷ = - = Part2:脱式计算4 ÷16+3× 15-3 ÷ ×2 41 61 31 6121 54 53 4 1 101 13 107 4 2 1 7 2 9 8 83 71 7 4 8 5 9 4 6 1 9 5 72 534 3 8 7 432 - ×2+1 ÷ - ×Part3:解方程-χ=χ+2 =4.25χ+χ=121 χ-(1 + )=4.5Part1:口算42.15+3.48= 34.45+349.5= 84.26+24.66= 94+32.8= 15.15-9.2=÷ = - = - = + = + = Part2:脱式计算1÷ + ×(3 ÷2 ) (2-3 × )÷(4 ÷3 ) 1110 3 2 12 7 4 1 3 2 3 2 61 92 92 21 51 51 51 51 112 11 9 5 1 5 1 52 55 44 16 5 15 8 7 2 14 53 2 8 5 7 5 6 1 3 1 9 7 6 5 431 ÷(1 × + ÷1 ) 3 + ×(1 - )÷2Part3:解方程(χ+ )×7=8.1 37.5+ +χ=69= χ-1- χ=2Part1:口算16.43+8.48= 292.4-72.56= 245+28.1= 10.01-5.4= 183+873=× = + = - = - = ÷ = Part2:脱式计算(1 +6 +2 +3 )× [9-( + )×24]÷11 ÷ -1 ×1 +32 +1÷3.8×3 -3.5 3.6χ 1.25 32 8 53 1 83 14153 8 1 12 1 91 92 52 74 20 721 54 8 7 4 3 8 1 6 1 95 8 3 7 4 5 2 3 2 65Part3:解方程χ- + = χ- χ=χ+ χ=11 + χ=Part1:口算156.4+87.82= 25.42-12.8= 21.1-9.42= 63.1-4.2= 46.5+63.9=+ = - = ÷ = × = + = Part2:脱式计算(1 × +5 ÷ )÷11 (8.25-6 )÷(2 +4.2)×7[1-(4 -1.25×2)]÷3.5 1.25×3.9×2.1÷(3.5×2.5×0.39)107 51 32 65 32 121 7 3 4 3 4 1 4 32 1 138 4213 75 218 8 5 15 4 3131 72 43 5 3 8 5 95 18 1 76 157 2 1 5 3Part3:解方程2χ+ =4.625 -2χ=-3χ= +21.5= χPart1:口算9.82+4.5= 241-34.1= 45.6-42.26= 63.75+62.5= 47.16-24.8=+ = - = + = × = 0.25÷ = Part2:脱式计算(7.8×1 -4.6)÷1113 +886 ×0.25+0.625 3 ×25 +37.9×6 85 54 41 8 7 16 11 21 9 8 10.5×7.23.6×2.1+3.5×2.4 133 32 133 195 5352 52 43 6 1 9 2 5 2 8 5 43Part3:解方程χ- χ=0.2 χ+ =1 ×3+2.75χ=6 9 χ=5 ×1Part1:口算10.58-5.8= 456.4+369.45= 434+147= 34.15-23.5= 482.4-64.23=+ = - = ÷ = × = + = Part2:脱式计算383 ×7.9+79×61 6.8× +0.32×42-8÷2541 × +51 × +61 × (5 -0.8+2 )×(7.6÷ +2 ×1.25)Part3:解方程31 9572 2131 2423438 5 6 1 7 1 43 85 258 31 43 41 54 51 65 95 94 54 52 6 5 5 1 53 274 9 4 9 7 14 3 7 27 6 532.4-1 =3.2-χ 1 -2χ=Part1:口算37.78+3.65= 482.4-39.8= 24.15-8.3= 341.92+74.2= 357+159.2=× = - = + = - = ÷ = Part2:脱式计算(9 +7 )÷( + )÷34Part3:解方程3χ- χ= (1- )χ=4 3 31 31 21 10051 1918 43 (0.22-0.2065)÷(3.6×0.015) 0.00325÷0.013 72 75 95 92 5 -4 ÷5 (4 +0.75)×3 7 2 3 2 13 9 454 6 1 15 8 18.25-5 × 3 0.1+ +7 ÷1.25 5 2 8 151 2 1 9 5 4 3 9 1 6 1 6 5 72 43 7 1 8 7÷χ=0.8 4( +χ)=7Part1:口算167-88= 35.4÷0.5= 42.3×0.4= 87.5+23.61= 54.5-4.26=÷ = + = + = - = - = Part2:脱式计算( + + )×2 16.8×[(2.4+ )÷1.12-1 ]8.4×[(1.2+3 )÷3.4- ] ×1.375+215 ×Part3:解方程÷χ= χ÷ =30 5 4 51 25 4 65 5 4 7 2 30 1 35 1 631 31 65 31 21 19 18191 83127 74 83 75 31 21 75 54 98 97χ÷ = ÷ (χ+3)× =48Part1:口算137.8+4.4= 134.2-54.89= 15.8+348= 201.4-24.51= 463.1-82.4=- = + = - = + = + = Part2:脱式计算[24.8+(3 -2.5)×2 ÷10]÷3 1 +[2 -(2 -1.875)]÷2[2 -(8.5-2 )÷3.5]×7 [4 ÷(2 -1 )-9× ]×1Part3:解方程÷ χ= ÷ 2 ÷χ=2(13-χ)× =6 2χ+1 =2121 85 43 43 25 18 7 3 25 735 6 92 1310 81 43 143 143 121 43 215 31 119 2 17 421 3 253 51 51 61 31 41 65 92 31 152 107Part1:口算133-54.2= 34.8+46.62= 534.68-26.8= 45.15+39.8= 8.64+37.6=- = - = - = + = + =Part2:脱式计算1 ÷[2 - ×(1.7+1 )]×0.16 [2-(5.55×1.4-2.7÷0.4)]÷0.1350.625×(1 +3 )+ ÷1 - [26.5× -(8.3-7 )+4÷2 ]÷11Part3:解方程χ+(3χ-16)÷ =10(χ+1) 7(6.5+χ)=87.50.1(χ+6)=3.3×0.4 3χ+1.2χ=254154 107 3 1 2912 51 32 61 61 53 85 83 4037 21 32 41 5 3 10 7 5 3 4 1 6 5 3 1 7 34 3 12 7 9419.2-4.82= 14.1÷0.2= 165.4+37.56= 3.25+48.5= 154.3-64.12=+ = - = - = - = + = Part2:脱式计算[(11 -3 ×1 )-8 ÷3.6]÷2 ÷2 -1 × ÷7+ ×[( +4 ÷1.5× )÷2 -0.83]÷ 4 - +0.125-3Part3:解方程- =1 2χ- =2+- =2.5 χ- =2-Part1:口算4.7-3.9= 46.1-45.61= 81.37+23.9= 93.18+82.55= 56.1-34.51= 3 2χ+1 3 χ-1 3χ+24χ-3 χ+1 χ+1 2χ-1 3χ+291 53 172 52 256 1310 2919 52 1311 51 6322 167 8741 74 83 53 10051 287 14 11 4 1 11 5 8 3 13 7 5 2 4 3 53 72 6 5+ = + = - = + = + =Part2:脱式计算[0.314÷15.7+(3-1.47)×6 ]÷102.2×( -0.375) 1 ÷0.25×2(0.873× +0.127× )×5 24×( -0.25+ )Part3:解方程χ-0.95×4=8.5 - =50- =1 - =0.5χ+2Part1:口算3.58+6.8= 184.4-65.7= 36.6+14.84= 20.36-18.5= 37.8+69.32=+ = - = + = - = × =4 3 0.5χ-3 0.2 χ+4 0.7χ 0.030.17-0.02χ 520χ-10 510χ+30 85 524 1 5227 5 27 5 83 65 1271211 73 52( - ÷2)× +1÷1 (1 + ×1 )×0.6253.28-2 +6.72-5 6 ÷0.8+1 ×1Part3:解方程- = 0 +1 == -1 - =1Part1:口算15.06-8.9= 34.8+66.91= 498.6-49.26= 69.4+24.16= 0.2×45.5=0.39÷ = - = - = + = + =Part2:脱式计算[5-3 ÷(1 +2.25× )]÷ 1 ×(1.4- - + ) 157 23-χ 3χ+4 62χ+1 4χ+5 2 3χ-154χ-6 4χ+2 62χ-311 911 24 110113325 1825 1121 8 1 8 7 3 1 8 7 8 1 3 1 6 5 9 1 94 92 6 1 11 6 13 5 41 43 61 85 72(3 -1.5+4 )×120 ( +1 ÷ )×2Part3:解方程+χ=3+ - - +3=0×(χ+10)= ×(5χ-6) 0.75+ χ=6Part1:口算985+458= 12.4-9.47= 30.1÷0.2= 64.65+426.9= 132.59-85.8=- = 2.4× = - = + = + = Part2:脱式计算1.25×3 -1 +9.2× 7 ×5.2+15.2+2 ×7 4χ-2 31+χ 5χ-2 10χ+3 32χ-5 5 4 5 1 43 61 31 52 94 21 1674 535 3 4 5 54 4 1 125 12 5 8 1 94 12 7 14 9 15 46 1(16.25-13 )÷1 + ×3÷(1.1- )+ ×Part3:解方程=(χ+7)÷11 + χ=518:0.2=χ: 1.2:χ=5:1.5Part1:口算0.3×51.9= 16.84+924.3= 751.7-46.82= 45.9+3.21= 46.42-38.5=+ = + = ×0.32= - = - = Part2:脱式计算×(2.5- )+ ÷0.25 4 ÷ -1.4×(1- ) 9χ 21 41 43 51 54 47 111 43 43 41 125 52 31 8χ 43 41 125 16 516943 10 316 3103 15 4853.56×2 -1.56×2 -2 2.4÷ -9.6× +6 ×1.5Part3:解方程χ+ =240 χ- χ=1.2:2.5=6:χ 12:1.4=3χ:3.5Part1:口算121.4-25.74= 319.6+62.43= 34.11-17.7= 37.45+24.18= 41.7÷3=÷4= - = ÷0.4= + = - = Part2:脱式计算1 ×[7 +(14.625-3 )-4 ] ×5 - ÷0.35+(11.7-8.4×1 )÷1 2 ×3.5×3 -1 ×9 32 31 81 65 21 32 41 21 103 103 32 109 72 41 5χ 54 5 3 9 211 813 95 24 110 32 1101Part3:解方程6.4:2χ=12:1.5 χ-0.45=63 -(0.83+χ)=1.4 4(χ-5.6)=1Part1:口算24.2÷0.4= 56.8+54.62= 34.29-24.5= 292.4-74.6= 6.66+54.8=÷0.6= - = + = + = - = Part2:脱式计算84 ÷14+16 × -(1- ) ( - ÷2)×21× +0.32× - ×12+ ×0.32 2 ×(10-3 )÷73 139 72 134 21 21 141 1413 41 101 1310 251 31 544143 53 745 3 5 3 61 152 73 154 9 2 8 5Part3:解方程45×(χ-83)=36(χ-75) 48×(34-2χ)=56(χ+2)24×(2χ-63)=18×(χ+16) 6.3×(1.8+χ)=8.4×(1.6-χ)Part1:口算74.9+34.81= 0.04×24= 68.2-16.52= 34.16-16.5= 46.5+3.69=- = × = + = ÷ = + = Part2:脱式计算× - ÷0.5 ÷ ÷0.9-(0.5+ - )÷ 0.25÷(0.3÷ )×0.6 18 11 12 5 43 41 61 51 71 7175 41 103 72 22 15 25 11 11 23 1 24 7 61 12 5 9 2Part3:解方程χ+0.9=1 χ÷1.1- =×(χ+6.3)=2 ÷(1.2-χ)=Part1:口算0.5×5.48= 13.35-4.68= 248.2+32.48= 21.45-14.8= 49.01-11.4=+ = - = - = × = ÷ = Part2:脱式计算0.6- ÷0.3× +0.5+ ÷( + )÷0.4-0.125 ÷(0.8÷ )×0.4Part3:解方程7 313 1239 44 1 1014 1 11 6 7 2 70 1 43 43 30 53 52 6 53 265 51 103 10974 28 1510 75411 93 19 511 4( +χ)×2.9=11 (χ+9.3)÷3.9=2Part1:口算76.84+32.4= 290.2-54.32= 23.58-19.8= 63.3÷0.6= 24.7+54.63=6÷ = - = + = × = ÷0.4=Part2:脱式计算+ ÷0.9× + ÷ ÷0.1÷ ×(0.4+0.7) ×(0.1÷ )+0.5Part3:解方程+ χ= + ÷χ=1 73 20 37835 53 53 2 14 1 81 32 3 2 9 2 10 1 10 7 4 17 4 8 5 8 5 19 10 18 7 18152 43 4 19 19 898×(χ+5.1)=3 ×(χ÷ )=Part1:口算0.3+0.32= 10.8÷0.9= 9-2÷8= 43.15-34.6= 94.8+45.62=4÷ = + = - = + = × = Part2:脱式计算÷0.9+0.9- ÷0.4- ××(0.5-0.1÷ ) 0.25×(0.4÷ ÷ )Part3:解方程5(χ+4)+6=12(χ+1)-7 - =4 325 1824 5109 3 27 3 21 81 52 51 103 52101 6 5 65 3χ 11 58143 3 254 94- = χ+ =Part1:口算2.8÷0.25= 19.68+34.2= 152.14-3.54= 51.15-31.5= 15.6×0.7=× ×14= - = × ÷ = ÷ - ÷5= ( + )×30= Part2:脱式计算+0.4- ÷ ÷ × ÷0.6×( × )÷ ×( × )+Part3:解方程2(χ+1)÷3=24÷36 (χ-1)= (χ+1)χ+0.8=1 χ+ ÷ = 7 3 21 51 54 53 61 41 103 101 101 5421 81 101 32 21 5 4 7 3 41 6053 3 2 15 14 6 1 4 3 6 5 9 5 6 5 6 16 5 5 3 61Part1:口算18.95-6.76= 8.64×3= 132.7-29.61= 16.68÷0.4= 39.29+16.37=+ × = + = 7.5× = ÷ = 24×( + )= Part2:脱式计算× ÷0.4+0.7 0.5— ÷ +0.3+ ×( ×0.9) ×( ×0.6- )Part3:解方程12χ: 5=48: 20 (χ+1): 10=(χ-1): 5(χ+0.9)×0.7= χ+ =5 3 10 7 103 53 54 5254 152 7556 6 1 613 1 6 5 3 1858 7 10 3 6 1 6 5 9 1 127 6 5 3 27 646.15-32.5= 56+24.15= 745.5+64.85= 94.2-4.42= 54.56+87.8=( + )×6+ = 12÷ = ÷ = ( + )÷ = + = Part2:脱式计算+ ÷0.1+0.3 ÷0.9× -×0.6×(0.125+ ) ÷( + ×0.7)Part3:解方程(3χ+1): (χ+1)=2:1 (4χ+3): 5=χ: 1χ- = - χ=Part1:口算128.4-76.54= 34.5+87.15= 15.2÷50= 184.25-64.5= 58.4+64.76= 21 81 21 41 918 14 16 554 10 98 7 16 1 32 19 49 14 7 3 498 6 5 13 113 7 4 3 6 1 15 14 20 7 2 7 4 1 3 2 32× + ÷5= + = 6÷ = 1÷3× = × =Part2:脱式计算4 ×2 +4 ×4 +6 ×4 4÷16+3 ×[(3 -2.75)÷1 +2 ]÷2 15-3 ÷ ×2Part3:解方程- χ= ÷ χ=+ χ= × χ=1Part1:口算2.75+19.3= 0.9×18.5= 19.4-6.54= 32.8+56.42= 631-67.9=÷ = 56× = + = - = 3.6× = 4 312713 7 7 2 74 7 4 2 1 72 32 71 51 54 65 98 83 13975 73 178 32 173 19 11 6 1 5 3 61 15 4 9 5 7 38314 918 59 2943.14×4 +3.14× -0.314÷ 1÷ + ×(3 ÷2 )2 ×( + )+0.8 2.4×(2- × )÷0.125Part3:解方程χ+ =0.8 χ- =0.251 χ×2 =0.4 χ÷ =2.3-1Part1:口算44.9+58.8= 54.3-27.3= 0.8÷327= 30.1-1.44= 112-97.5=×0.45= 9× + = + = × - = - = Part2:脱式计算(0.3- )×1 ÷0.125 ( + )÷ - 4 35 26 520 3 2 1 2 1 3 1 5 3 1813 383 926 531 9 8 5 46 5 6 591 87(4÷7+ )×6- 2 6526+450÷18×101Part3:解方程×(χ+2.2)=2×(χ-5.1)=1×( +0.3χ)= ×(1 -0.1χ)=Part1:口算49.8+26.82= 71.3-58.62= 491-346= 72.18÷9= 48.5+75.81=7× + = ÷6= 6×( + )= 31× - = - =Part2:脱式计算(0.6× + ×1.2)÷1 ( ×4 + )÷ ÷2 2 1 2110 215 61 75 7 2+0.5 73 187 2 1 61 34 8743 12 5 17 2 8 3 5 2 94 12 75 3 8 7 76 6 5 65 83 49 5 143 32÷[( - )÷ ] 36×( + - )Part3:解方程- ÷ χ= + ÷1 χ=- ÷ χ=0.25 0.375+ ÷1 χ=Part1:口算28.2+575= 60.5-8.38= 80×2.14= 530-80.4= 53.94+65.5=×18-14× = × + = × + = × + × = + ÷ = Part2:脱式计算7 316 1514 35310 7127 0.84×3.4×5.4 7.2×0.85×4.2 ( - )× 39× ÷42 3 26 17 1 54 13 10 16 3 22 9 127 307 3714 3526 12115 16 59 561 323 25 43 24 3229111 2 1Part3:解方程×(0.1χ÷ )= ×(1.6χ× )=÷(3.5χ÷ )= ÷(2.4χ× )=Part1:口算81.62-67.8= 20.4-9.64= 72.8÷40= 29.67+33.3= 28.59+32.5=14× - × = × + = - × = 3× + = × + = Part2:脱式计算× + × 3 ÷[5 -4.5×(0.2+ )1110÷[56×( - )] 10 -(2 ÷1 + ×1 )32 17 25 3211 5 4 54 1 16 7 9 4 12 7 9 7 3516 207 5 4 8 3 7 3 73 76 113 11 5 43 73 83 4 3 83 41 31 61 207 527 37531249 4 35 2 9 2 1512 6 5 7 231 35Part3:解方程÷ χ-0.375= ÷ χ-0.625=÷0.7χ- = ÷1.5χ+ =Part1:口算70.59-2.81= 16.72+45.6= 52.5÷50= 35.8+6.18= 281-41.16=+ ÷ = × + = 101× - ×21= ÷ = 10÷ + ×4= Part2:脱式计算3.75÷1 +(1.5+3 )×2 [( +1 )× -0.75]÷5.5× +3.6÷1.2-6 ×0.6 [4.6-1.2×( +1.5)]÷3 21 21 16 143 6 5 6 1 9 7 1211 8 3 43 71 31 43 1212132 98 5 42 1 8 7 434 15 1 51 72 5 2 9 5 6 1Part3:解方程- =3 - =0.2- = 7×( +χ)=8.4Part1:口算50×2.496= 31.5-24.51= 45.9+57.33= 6.94+7.08= 61.9-49.05=÷ + = × + ÷ = + = × + = ÷ - = Part2:脱式计算×(1÷ - ÷1)+1 84 ÷14+16 × -(1- )5.4÷(10÷(6-1.8)× 0.2χ-2 0.5χ+1 0.23+0.2χ 0.010.2+0.03χ 0.54χ-1.5 0.25χ-0.8 0.11.2-χ 21 43 43 74 65 21 21 141 1413 103 9.7×13+169× 1998×3÷43×559÷37217 2 31 52 1033 25 231 21 5 210 9 209 9 2 83 75 9 5Part3:解方程+ =37 +2χ=2- =115 - =0.5Part1:口算36.52+383.8= 716-685= 48.2-39.42= 56.4÷8= 49.5+65.94=×4- = × + = × × = ÷ + = ÷ + = Part2:脱式计算+( + )× 2008×18×( + )×25 ÷ + ÷Part3:解方程8 322 30.032χ 0.020.25-0.1χ 0.20.5χ-0.1 0.2χ+1 χ-3 1.5χ-10.6 χ 11 912 58 5 816 14 34 16 15 25 2 5 25 452 20072006 7 4 21 257 253 18 1 738 7 74 87-χ= - =1Part1:口算70×8.27= 42.6+172.82= 41.3-36.61= 504-473= 3.76+17.5=- × = ÷ + = × - = ÷ - = - = Part2:脱式计算+ ×4+ ×19 ( + + )÷( + + )( + + )÷ 265÷ +578× +157÷Part3:解方程- χ= +1 - = 8 3 25 19 12 5 0.030.5χ+2 0.20.3×(0.5χ+2) 0.3χ 0.020.17-0.02χ 0.31-0.5χ 32 0.02 0.3χ 1.2 1.8-1.8χ 2 1.3-3χ 0.21.5χ-0.24 2 1 12 11 4 3 4 3 5 3 5 4 8 5 4 5 15 7 9 2 9 8 729 7 7 5 9 5 12 5 7 1 9 1 12175 25 21 187 25 5 72 1 43 34 34= -6.5- =7.5Part1:口算56.1-24.82= 6×24.17= 3.81+26.9= 51.19-36.6= 17.53+24.9=2.8- = + ÷6= 1.5× + = ÷ - = ×( - )= Part2:脱式计算33÷ + ×44+24÷ -0.6×(7+9)× ( × - )×1Part3:解方程χ: =21: χ×( + )= 5 312 50.050.1χ+0.12 154 9 4 9 49 5 5 126541 10 178+7878+787878+7878787845+4545+454545+4545454553 3 5 35 18 1 9 5 10731 517 6 15 5 85 6 1 831213。